Chapter 8
True or False: Two circles can intersect at exactly one point.
True
A hiker started heading due north, then turned to the right 47 degrees, then turned to the left 85 degrees, and next turned to the right 25 degrees. To resume heading due north, what turn must the hiker make?
The hiker must turn right.
58,029 grams = ____ kilograms?
58.029 kg
What has exactly 4 lines of symmetry?
Square
Is the regular 32-gon constructible, using the Guass-Wantzel theorem?
Yes
Paula is p years old. Form an algebraic expression with the variable p that represents the age requested. The current age of Paula's mother, who, 3 years ago, was 4 times Paula's age.
4(p-3)+3
Are any of the regular polyhedra prisms?
Yes, a cube is a prism.
Can the measurements 12,16, 20 be the lengths of the sides of a right triangle?
Yes
Does the transformation of 'a deck of cards is shuffled' correspond to a rigid motion?
Are any two isosceles triangles necessarily similar?
What is the value of a if the point (a,-1) is on the line 3x-4y=16?
a=4
The interior angles of an n-gon have an average measure of 144 degrees. What is n?
n=10
A rectangular field is 5 times as long as it is wide. If the perimeter of the field is 480 yards, what are the field dimensions?
width= 40 yds length= 200 yds
What has a center of 180 degrees rotational symmetry?
Parallelogram
Suppose triangle ABC is approximately equal to triangle BCA. What more can be said about triangle ABC?
All three angles are congruent, so triangle ABC is equilateral.